Integer Overflow or Wraparound Affecting krb5 package, versions *


low
  • Attack Complexity

    Low

  • Integrity

    High

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  • snyk-id

    SNYK-UBUNTU2204-KRB5-2797765

  • published

    16 Jan 2018

  • disclosed

    16 Jan 2018

How to fix?

There is no fixed version for Ubuntu:22.04 krb5.

NVD Description

Note: Versions mentioned in the description apply to the upstream krb5 package.

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.